Two-tier monitor stand riser



FIG. 1 is a perspective view of a two-tier monitor stand riser showingmy new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown in the drawings illustrate portions of thetwo-tier monitor stand riser that form no part of the claimed design.

CLAIM The ornamental design for a two-tier monitor stand riser, as shownand described.